<h1>Video Test</h1>
<div class="gsc-video-wrapper" style="margin-left:0;margin-right:auto;"><div class="gsc-video-container gsc-video-container-youtube" style="padding-bottom: 75.0000%">
    <iframe class="gsc-video gsc-video-youtube" src="https://www.youtube.com/embed/RcnksOUugcA&autoplay=0" allowfullscreen></iframe>
</div></div>
<div class="gsc-video-wrapper" style="margin-left:0;margin-right:auto;"><div class="gsc-video-container gsc-video-container-bilibili" style="padding-bottom: 75.0000%">
    <iframe class="gsc-video gsc-video-bilibili" src="https://player.bilibili.com/player.html?bvid=BV1cx411m78R&autoplay=0" allowfullscreen></iframe>
</div></div>
<h3>autoplay</h3>
<div class="gsc-video-wrapper" style="margin-left:auto;margin-right:auto;max-width:960px;"><div class="gsc-video-container gsc-video-container-youtube" style="padding-bottom: 56.2500%">
    <iframe class="gsc-video gsc-video-youtube" src="https://www.youtube.com/embed/RcnksOUugcA&autoplay=1" allow="autoplay" allowfullscreen></iframe>
</div></div>
<div class="gsc-video-wrapper" style="margin-left:0;margin-right:auto;max-width:960px;"><div class="gsc-video-container gsc-video-container-bilibili" style="padding-bottom: 75.0000%">
    <iframe class="gsc-video gsc-video-bilibili" src="https://player.bilibili.com/player.html?bvid=BV1cx411m78R&autoplay=1" allow="autoplay" allowfullscreen></iframe>
</div></div>
<h3>file</h3>
<div class="gsc-video-wrapper" style="margin-left:auto;margin-right:auto;"><div class="gsc-video-container gsc-video-container-file" style="padding-bottom: 75.0000%">
    <video controls autoplay class="gsc-video gsc-video-file"><source src="/static/test.mp4" /></video>
</div></div>
